linux-kernel - [tip:perf/core] perf/x86/intel: Add Cannon Lake support for RAPL profiling

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Message-ID: <tip-490d03e83da2a5e9d7db84b1ec30a9c95415787e@git.kernel.org>
Date:   Sat, 31 Mar 2018 03:19:05 -0700
From:   tip-bot for Harry Pan <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     peterz@...radead.org, mingo@...nel.org, vincent.weaver@...ne.edu,
        torvalds@...ux-foundation.org, harry.pan@...el.com,
        bleung@...omium.org, hpa@...or.com, jolsa@...hat.com,
        puthik@...omium.org, acme@...hat.com, tglx@...utronix.de,
        eranian@...gle.com, alexander.shishkin@...ux.intel.com,
        linux-kernel@...r.kernel.org
Subject: [tip:perf/core] perf/x86/intel: Add Cannon Lake support for RAPL
 profiling

Commit-ID:  490d03e83da2a5e9d7db84b1ec30a9c95415787e
Gitweb:     https://git.kernel.org/tip/490d03e83da2a5e9d7db84b1ec30a9c95415787e
Author:     Harry Pan <harry.pan@...el.com>
AuthorDate: Fri, 9 Mar 2018 20:15:47 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Sat, 31 Mar 2018 11:28:36 +0200

perf/x86/intel: Add Cannon Lake support for RAPL profiling

This patch enables RAPL counters (energy consumption counters)
support for Cannon Lake processors.

( ESU and power domains refer to Intel Software Developers' Manual,
  Vol. 4, Order No. 335592. )

Usage example:

  $ perf list
  $ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10

Tested-by: Puthikorn Voravootivat <puthik@...omium.org>
Signed-off-by: Harry Pan <harry.pan@...el.com>
Reviewed-by: Benson Leung <bleung@...omium.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Vince Weaver <vincent.weaver@...ne.edu>
Cc: colin.king@...onical.com
Cc: gs0622@...il.com
Cc: kan.liang@...ux.intel.com
Link: http://lkml.kernel.org/r/20180309121549.630-2-harry.pan@intel.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/events/intel/rapl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index a2efb490f743..32f3e9423e99 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -774,6 +774,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_MOBILE,  skl_rapl_init),
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_rapl_init),
 
+	X86_RAPL_MODEL_MATCH(INTEL_FAM6_CANNONLAKE_MOBILE,  skl_rapl_init),
+
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_DENVERTON, hsw_rapl_init),